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NEET-XII-Physics

12: Atoms

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  • #3
    What is the shortest wavelength present in the Paschen series of spectral lines?
    Ans : Rydberg’s formula is given as:



    Where,

    h = Planck’s constant = 6.6 × 10-34 Js

    c = Speed of light = 3 × 108 m/s

    (n1 and n2 are integers)

    The shortest wavelength present in the Paschen series of the spectral lines is given for values n1 = 3 and n2 = ∞.